Locomotive-bell ringer



(No Moal.) T. W. HEINTZBLMAN. LOGOMOTIVE BELL RINGER'.

No. 552,760. Patented Jan. 7, 1896.

FI G l- ANDREW EGRMMM. PHOTO-UTHQWASH INGTONJIC.

ilNirEn *STATES PATENT Ormea.

TAYLOR XV. IIEINTZELMAN, OF SACRAMENTO, CALIFORNIA.

LOCOIVIOTIVE-BELL' RINGER.

SPECIFICATION forming part of Letters Patent No. 552,760, dated January7, 1896.

Application filed October 25, 1895. Serial No. 566,874.. (No model.)

To @ZZ whom it may concern:

Be it known that I, TAYLOR W. HEINTZEL- MAN, of the city and county ofSacramento, in the State of California, have invented a certain new anduseful Improvement in Ilow comotive-lell Ringers, of which improvementthe following is a specification.

The object of my invention is to provide simple and effective means forautomatically sounding the bell of a locomotiveengine, whenever theengine is moved in either direction, and doing so at desired anddetermined intervals during the continuance of such movement.

To this end my invention, generally stated, consists in the combinationof a fluid-pressure cylinder, a piston fitting therein and carrying abell-hammer, a valve controlling the supply of iiuid to the cylinder,and a device connected to a moving `member of the engine forperiodically opening the supply-valve.

The improvement claimed is hereinafter fully set forth.

In the accompanying drawings, Figure 1 is a side view, in elevation, ofa portion of a locomotive-engine, illustrating an application of myinvention; Fig. 2, a transverse section through the same; Fig. 3, alongitudinal central section, on an enlarged scale, through thehammer-cylinder; and Fig. 4 a similar section through the supply-valve.

In the practice of my invention I provide a fluid-pressurehammercylinder 1, which is provided with lateral han ges 2, throughwhich it is adapted to be secured to the bell-yoke 3, or to any otherconvenient support adjacent to the bell 4 of the engine. In the instanceshown, the flanges 2 are made integral with a removable cap or head 5,which is screwed upon the periphery of the cylinder 1, and which servesas a guide for the pistonerod G of a properly-packed piston 7, fittingin said cylinder. The detachment of the head 5 admits of the insertionor removal of the piston and rod, the opposite end of the cylinder beingpreferably, as shown, closed. A hammer 18 is fixed upon the outer end ofthe pistonrod 6 and is preferably connected removably thereto, as by akey 19, so as to admit of the substitution of a new one when worn out orbroken.

A fluidspressure-supply pipe S, which may ment of the connecting-rod 23.

either lead to the steamespace of the boiler 9, or, as in the instanceillustrated, to the main air-reservoir 10 of the air-brake appa- 55ratus of the engine, communicates with one end of the cylinder 1,adjacent to which the `piston 7 is normally held by a spring' 11, and

an exhaust-port 12 (one or more) is formed in the cylinder, in positionto be put into com- 6o munication with the supply-pipe 8 by the traverseof the piston past it to the outward limit of its stroke. The length ofstroke of the piston may be varied by the adjustment of a set-screw 13,which engages the supply end of the cylinder, and against which thepiston is normally held by the spring 11.

The supply of fluid under pressure to the cylinder 1 is controlled by asupply-valve 14, which is iiXed upon a stem 15 and opens and 7o closes aport 1G in a casing 17, which is interposed between and connected withadjacent sections of the supply-pipe S. The valve 14 is held normallyseated by the pressure upon its top from the source of supply, and,while seated, cuts off the supply of tluid to the cylinder 1.

The supply-valve 1i is periodically opened for admitting fluid to thecylinder 1 to effect the stroke of the piston 7 and therebyV tap 8o thebell by a device connected with a moving part of the engine, and thebell is thereby sounded one or more times in each revolution of thewheels in either direction. A convenient construction for this purposeis shown in the drawings, the same consisting of a tappet or lifter 20,which is secured to one of the cross-heads 21 of the engine in positionto abut against the stem 15 of the supply-valve and thereby momentarilyunseat said valve 9o and admit iiuid under pressure to the hammer-piston7 on each traverse of the crosshead in either direction.

It will be obvious that by employing two or more tappets the number oftaps of the bell made during each revolution of the driving-wheels willbe correspondingly increased.

I do not desire to limit myself to the specie means for unseating thesupply-valve above described, as the same operation may, 10o if desired,be effected in a similar manner by the action of a projection on thevalvestem 22, or a tappet actuated by the movef Such variation of merestructural detail would not involve any departure from the spirit of myinvention, the essential feature of which consists in utilizing a movingmember of the engine as a means for periodically actuating thesupply-valve of a fluid-pressure cylinder.

ln order to enable the operation of the appliance to be intermitted,when desired-as, for example, in passing over portions of the road Whereit is not necessary for the bell to be sounded, or Where, as in somelocations, the ringing of locomotive-engine bells is prohibited bymunicipal ordinances-a shut-oif cock 24 is provided in the supply-pipe8, between the supply-valve 14. and the iiuid-press ure reservoir, byclosing which cock the unseating of the supply-valve is prevented fromeffecting` the traverse of the hammer-piston 7.

It Will be seen that my improvement is of simple construction andreadily applicable to locomotives of any of the various constructions inrailroadvservice. lts application insures the sounding of the bellWhenever the engine is moved in either direction Without dependence uponthe crew of the engine, and thus puts beyond doubt that the bell shallbe sounded in localities Where it is necessary or desirable that thisshould be done.

I claim as my invention and desire to secure by Letters Patentl. In alocomotive bell ringer, the combination, substantially as set forth, ofa Iiuid pressure cylinder, a piston iitting therein and carrying a bellhammer, a valve controlling the supply of fluid to the cylinder, and adevice, connected to a moving member of the engine, for periodicallyopening the supply valve.

2. In a locomotive bell ringer, the combination, substantially as setforth, of a fluid pressure cylinder, a piston fitting therein andcarrying a bell hammer, a valve controlling the supply of fluid to thecylinder, and a tappet connected to a moving member of the engine inposition to abut against and unseat the supply valve during eachrevolution of the engine Wheels.

3. In a locomotive bell ringer, the combination, substantially as setforth, of a fluid pressure cylinder, a piston fitting therein andcarrying a bell hammer, a supply pipe connecting said cylinder With acompressed air reservoir, a valve controlling said supply pipe, and adevice, connected to a moving member of the engine, for periodicallyopening the supply valve.

4. In a locomotive bell ringer, the combination, substantially as setforth, of a iiuid pressure cylinder, a piston fitting therein andcarrying a bell hammer, a supply valve controlling a pipe for the supplyof fluid to the cylinder, a device, connected to a moving member of theengine, for periodically opening the supply valve, and a shut oif cockin the supply pipe between the supply valve and the source of supply.

5. ln aY locomotive bell ringer, the combination, substantially as setforth, ef a fluid pressure cylinder, a supply pipe leading thereinto, apiston fitting therein, a bell hammer fixed to Ythe rod of said piston,an exhaust port in said cylinder, in position to be put intocommunication with the supply pipe by the outward traverse of thepiston, a spring bearing on the piston and tending to hold it normallyadjacent to the supply end of the cylinder, and an adjustable stop forvarying the traverse of the piston.

TAYLOR XV. HEINTZELMAN.

Vitnesses:

CHAs. M. BECKWITH, FRANK F. ATKiNsoN.

